HP M3027 Service Manual - Page 219
Xy.zz Check Ram Dimm Slot <x> To, Xx.yy Dc Controller Error
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Table 6-1 Control-panel messages (continued) Control panel message Description Recommended action (see Engine control unit (ECU) on page 131). 53.XY.ZZ CHECK RAM DIMM SLOT To A problem exists with the device memory. continue turn off then on The DIMM that caused the error will not be used. X description 0 onboard memory 1 slot 1 You might need to reinstall or replace the specified DIMM. 1. Turn the device off, and then replace the DIMM that caused the error. See Install memory on page 30. 2. If, after replacing the DIMM, the message persists, replace the formatter (see Formatter on page 116). 54.XX ERROR To continue turn off then on A temporary printing error has occurred. 1. Turn the device off, and then turn the device on. 2. If the message persists, check the sensors in the device to make sure that they are working correctly. 3. If the sensors are working correctly, but the message persists, replace the ECU (see Engine control unit (ECU) on page 131). 55.05 ERROR To continue turn off then on The print engine is not communicating with 1. Turn the device off, and then turn the the formatter. device on. An error occurred while performing a remote 2. Try again to perform the remote firmware upgrade. firmware upgrade. 55.XX.YY DC CONTROLLER ERROR To continue turn off then on The print engine is not communicating with 1. Turn the device off, and then turn the the formatter. device on. 2. If the message persists, replace the ECU (see Engine control unit (ECU) on page 131). 3. If, after replacing the ECU, the message persists, replace the high-voltage power-supply (see High-voltage power supply (HVPS) on page 149). 56.XX ERROR To continue turn off then on A temporary printing error has occurred. 1. Turn the device off, and then turn the device on. 2. If this message persists, uninstall and then reinstall all input trays, and then turn the device off. 3. Turn the device on. If the message persists, replace the formatter (see Formatter on page 116). 57.03 ERROR To continue turn off then on A sub cooling fan (FM2) error has occurred. 1. Fan operation is verified during device power- up. Fan operation occurs only during power- up or during a print job. 2. Turn the device off, and then turn the device on. Verify that nothing is hindering or blocking the fan. 3. Verify that the fan is connected to connector J512 on the ECU PCA. You ENWW Control-panel messages 207